Payment tests refactor (#9695)

* Reorganized files, reduced function size, reduced duplication

* Refactored amazon tests organization

* Reduced duplication

* Reorganized paypal tests

* Reorganized stripe tests

* Fixed lint issues

* Fixed gem purchase expectations

* Added cloning so we don't modify the common block

test/api/v3/unit/libs/payments/amazon/upgrade-groupplan.test.js

@@ -0,0 +1,83 @@
+import uuid from 'uuid';
+
+import {
+  generateGroup,
+} from '../../../../../../helpers/api-unit.helper.js';
+import { model as User } from '../../../../../../../website/server/models/user';
+import { model as Group } from '../../../../../../../website/server/models/group';
+import amzLib from '../../../../../../../website/server/libs/amazonPayments';
+import payments from '../../../../../../../website/server/libs/payments';
+
+describe('#upgradeGroupPlan', () => {
+  let spy, data, user, group, uuidString;
+
+  beforeEach(async function () {
+    user = new User();
+    user.profile.name = 'sender';
+
+    data = {
+      user,
+      sub: {
+        key: 'basic_3mo', // @TODO: Validate that this is group
+      },
+      customerId: 'customer-id',
+      paymentMethod: 'Payment Method',
+      headers: {
+        'x-client': 'habitica-web',
+        'user-agent': '',
+      },
+    };
+
+    group = generateGroup({
+      name: 'test group',
+      type: 'guild',
+      privacy: 'public',
+      leader: user._id,
+    });
+    await group.save();
+
+    spy = sinon.stub(amzLib, 'authorizeOnBillingAgreement');
+    spy.returnsPromise().resolves([]);
+
+    uuidString = 'uuid-v4';
+    sinon.stub(uuid, 'v4').returns(uuidString);
+
+    data.groupId = group._id;
+    data.sub.quantity = 3;
+  });
+
+  afterEach(function () {
+    sinon.restore(amzLib.authorizeOnBillingAgreement);
+    uuid.v4.restore();
+  });
+
+  it('charges for a new member', async () => {
+    data.paymentMethod = amzLib.constants.PAYMENT_METHOD;
+    await payments.createSubscription(data);
+
+    let updatedGroup = await Group.findById(group._id).exec();
+
+    updatedGroup.memberCount += 1;
+    await updatedGroup.save();
+
+    await amzLib.chargeForAdditionalGroupMember(updatedGroup);
+
+    expect(spy.calledOnce).to.be.true;
+    expect(spy).to.be.calledWith({
+      AmazonBillingAgreementId: updatedGroup.purchased.plan.customerId,
+      AuthorizationReferenceId: uuidString.substring(0, 32),
+      AuthorizationAmount: {
+        CurrencyCode: amzLib.constants.CURRENCY_CODE,
+        Amount: 3,
+      },
+      SellerAuthorizationNote: amzLib.constants.SELLER_NOTE_GROUP_NEW_MEMBER,
+      TransactionTimeout: 0,
+      CaptureNow: true,
+      SellerNote: amzLib.constants.SELLER_NOTE_GROUP_NEW_MEMBER,
+      SellerOrderAttributes: {
+        SellerOrderId: uuidString,
+        StoreName: amzLib.constants.STORE_NAME,
+      },
+    });
+  });
+});